BEANIA. 271 



Phillips (Text-fig. 47). The leaf measures 5*5 cm. in length, and 

 5*5 in breadth. 

 Yorkshire. Purchased. 



Text - fig. 47. (Type - specimen of Phillips' Sphenopteris 

 longifolia ; in the York Collection.) This species, not quite 

 correctly figured by Phillips, is of the same type as V. 3301 

 (PI. IX. Fig. 4). Length of leaf 6-5 cm. 



Upper Shale, Gristhorpe. 



V. 3301. Narrow leaves, often with four segments, which may 

 be broader than in the leaf shown in Fig. 4, PI. IX. Cf. B. gracilis 

 (PI. IX. Fig. 5). 



39,210. This affords an example of a leaf intermediate between 

 the typical B. Phillipsi and Ginkgo digitata, forma Sutton i, as 

 shown in PI. IX. Figs. 2 and 10. The lamina is more deltoid in 

 shape, and narrower than in such a leaf as that shown in Fig. 2, 

 PI. IX., but a comparison of the more broadly lobed forms placed 

 in the species B. Phillipsi with some examples of Ginkgo digitata, 

 forma ITuttoni, leads to a sti'ong suspicion that no satisfactory 

 specific distinctions can be drawn between the various forms of 

 leaves from the Lower Oolite rocks referred to the genera Ginkgo 

 and Baiera. 



Scarborough. Bean Coll. 



Genus BEANIA. 

 [Carruthers, Geol. Mag. vol. vi. p. 1, 1869.] 



The genus Beania was instituted by Carruthers in 1869 for 

 a specimen from Gristhorpe, and diagnosed as follows: 



"Female fruit composed of scales arranged in loose spikes; scales 

 stalked and peltate, supporting two ovoid sessile seeds, one on each 

 side of the pedicel." 



The general structure of Beania is very similar, as Carruthers 

 pointed out, to that of the female flower of the Cycadean genus 

 Zamia, except that the individual carpophylls are farther apart 

 than in the recent species. If we imagine the internodes of the axis 

 of a Zamia strobilus considerably elongated, we have a structure 



